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首页> 外文期刊>International Journal of Heat and Mass Transfer >Stability and enhanced thermal conductivity of ethylene glycol-based SiC nanofluids
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Stability and enhanced thermal conductivity of ethylene glycol-based SiC nanofluids

机译：乙二醇基SiC纳米流体的稳定性和增强的导热性

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摘要

Nanofluid is one of the most popular fluids in recent scientific community, which exhibits more attractive heat transfer properties than the traditional thermal fluids. Nanofluids are fabricated by dispersing nanostructured solid particles in a selected base liquid. We recently reported on the rheological behavior of ethylene glycol (EG)-based nanofluids containing spherical-shaped silicon carbide (SiC) nanoparticles. In this study, we focused on the stability and thermo-physical property of EG/SiC nanofluids to investigate the enhanced thermal conductivity with respect to the effect of volume fraction and temperature. A series of SiC nanofluids with volume fraction up to 1.0 vol.% were made with this purpose. The results of sedimentation experiment and zeta potential analysis confirmed that the nanofluids exhibited good stability. In addition, enhancement up to 16.21% in thermal conductivity of nanofluids with volume fractions was found compared to base fluids and theoretical model. The thermal conductivity also increased with the measured temperature ranged from 20 to 50 ℃. We do hope that our current work could be useful for future research of SiC nanofluids as sharing a desirable direction of nanofluids research.
机译：纳米流体是近来科学界中最受欢迎的流体之一，它比传统的导热流体表现出更具吸引力的传热特性。通过将纳米结构化的固体颗粒分散在选定的基础液体中来制造纳米流体。我们最近报道了含有球形碳化硅（SiC）纳米颗粒的基于乙二醇（EG）的纳米流体的流变行为。在这项研究中，我们专注于EG / SiC纳米流体的稳定性和热物理性质，以研究相对于体积分数和温度的影响而提高的导热性。为此目的，制备了一系列体积分数最高为1.0％（体积）的SiC纳米流体。沉降实验和ζ电势分析的结果证实纳米流体表现出良好的稳定性。此外，与基础流体和理论模型相比，发现纳米流体的热导率随体积分数提高了16.21％。随着测量温度从20到50℃，导热系数也增加。我们确实希望我们当前的工作对SiC纳米流体的未来研究有所帮助，因为它们共享了纳米流体研究的理想方向。

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  • 作者

    Xiaoke Li; Changjun Zou; Xinyu Lei; Wenliang Li;

  • 作者单位

    Department of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, PR China;

    Department of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, PR China, No. 8 Xindu Avenue, Xindu District, Chengdu 610500, PR China;

    Organic Chemicals Co., Ltd., Chinese Academy of Sciences, Chengdu 610041, PR China;

    Department of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, PR China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Nanofluids; SiC nanoparticles; Stability; Thermal conductivity;

    机译：纳米流体;SiC纳米颗粒;稳定性;导热系数;

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